The Wand and the Foot Stamp
With the fake Sam from Trick r Treat Funko Pop! unless you know what you are looking for he can be harder to spot. Luckily there are 2 key differences to look for when identifying authenticity. Take a look at the wand that Sam is holding. On an authentic Pop! the wand is going to be further away from his head, where the fake is going to have the wand almost right against his head. This is the easiest difference to spot.
Next, you can take a look at the bottom of Sam’s feet. If your Pop! has the is facing down you should see a black stamp that says FM 1146 on top of a ©WBEI. The fake will have the FM 1146 on the bottom of the copyright.